4.8 Article

On/Off Photoswitching in a Cyanide-Bridged {Fe2Co2} Magnetic Molecular Square

Journal

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 135, Issue 5, Pages 1653-1656

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ja3087467

Keywords

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Funding

  1. Ministere de l'Enseignement Superieur et de la Recherche (MESR, France)
  2. Erasmus Mundus Program [13]
  3. Agence Nationale de la Recherche [ANR-08-BLAN-0186-01, ANR-09-BLAN-0212]
  4. Region Bretagne
  5. Ministerio Espanol de Ciencia e Innovacion [CTQ 2010-15364]
  6. Generalitat Valenciana [PROMETEO/2009/108, ISIC2012/002]
  7. Agence Nationale de la Recherche (ANR) [ANR-09-BLAN-0212, ANR-08-BLAN-0186] Funding Source: Agence Nationale de la Recherche (ANR)

Ask authors/readers for more resources

A repeatable bidirectional paramagnetic <-> diamagnetic photomagnetic effect has been observed in the cyanide-bridged Fe-Co square complex {[Fe{B(pz)(4)}-(CN)(3)](2)[Co(bik)(2)](2)}(ClO4)(2)center dot 3H(2)O [B(pz)(4) = tetrapyrazolylborate, bik = bis(1-methylimidazol-2-yl)ketone]. Magnetic measurements and low-temperature single-crystal X-ray diffraction experiments have shown that a complete electron transfer from the diamagnetic Fe-II -Co (III) state to the paramagnetic Fe-III -Co (II) metastable state is induced by 808 nm laser light irradiation, whereas the diamagnetic state is recovered in an almost quantitative yield under irradiation at 532 nm.

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